Blaze Livekit plugin integration

[HoangPN711]

Summary

Add Blaze plugin support for LiveKit Agents.

Changes

• add Blaze STT plugin
• add Blaze TTS plugin
• add Blaze LLM plugin
• add Blaze plugin packaging/config helpers
• add Blaze plugin README

Motivation

Enable Blaze voice AI services to be used through the existing LiveKit Agents plugin architecture.

Notes

The implementation is isolated under livekit-plugins/livekit-plugins-blaze and follows the existing provider plugin pattern.

[CLAassistant]

All committers have signed the CLA.

[HoangPN711]

Hi @tinalenguyen,

This PR adds the Blaze provider integration for LiveKit Agents and keeps the implementation scoped under livekit-plugins/livekit-plugins-blaze.

It follows the existing STT/TTS/LLM plugin structure used by other provider integrations. I’ve also addressed the outstanding review comments on the PR.

Would appreciate a review when you have time. Thanks!

[tinalenguyen]

hi @HoangPN711! thank you for the contribution, could you bump the version and add the plugin to this pyproject file

[HoangPN711]

Hi @tinalenguyen , thanks for reviewing this PR!

Updated as requested:

Bumped livekit-plugins-blaze to 1.5.9 (aligned with the current livekit-agents release)
Added blaze = ["livekit-plugins-blaze>=1.5.9"] to livekit-agents/pyproject.toml

Please let me know if any further changes are needed.